All the London railway stations :
Entrance to Blackfriars stations - very accessible in February 2019
Blackfriars national rail station has been completely rebuilt on top of the Victorian Blackfriars rail bridge. A new entrance to the station on the south bank opened in December 2011, making Blackfriars the only station in London to span the Thames.
Two lifts and four escalators have been installed in the new Blackfriars Underground station, making it the latest Tube station to become step-free. A further four escalators and seven lifts have been installed to serve the national rail platforms. (February 2012).
Underground lines : Circle, District, National Rail South Eastern, National Rail First Capital Connect, National Rail Southern
Accessibility friendly : Partially. Circle line eastbound (A step 177mm/gap 1mm) towards Liverpool Street, westbound (A step 157mm/gap 16mm) towards Westminster. District line eastbound (A step 147mm/gap 30mm) towards Westminster, westbound (A step 17mm/ gap 40mm) towards Upminster
There is Lift access between street and platform.
General description : This station recently re-opened after considerable redevelopment, with step free lifts to all platforms. See wiki
More comment : The National Rail guide.